How do you find a formula for the nth partial sum of the series [5/1*2]+[5/2*3]+[5/3*4]+...+[5/n(n+1)]+... and use it to find the series' sum if the series converges?
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Method 3 Finding the Nth Term of an Arithmetic Sequence
Identify the first term of the sequence. Not every sequence begins with the numbers 0 or 1. ...
Define your common difference as d. Find the common difference for the sequence as before. ...
Use the explicit formula. ...
Fill in your information to solve the problem.
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